LEE TESCHLER EXECUTIVE EDITOR A panelist made an interesting comment during the recently concluded TU-Automotive connected car conference near Detroit. It happened during one of the many sessions devoted to software infrastructure and connected services. “In Silicon Valley, autonomous vehicle control and driving is viewed as a solved problem. The real emphasis is on making […]
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Selecting an LED and finding the correct size resistor
Light Emitting Diodes (LEDs) are diodes that emit light when energized. LEDs can light a room now, whereas for decades they had been too weak to do much more than act as indicators. LEDs are fun to play with, and a fairly safe way to introduce kids to principles of circuits. There’s just a few […]
Top microcontroller threads on EDAboard.com – July
(editor’s note: Intrigued by the problem? Have a similar challenge? Have a question or another solution? Then click the “Read more” link and follow the conversation on EDAboard.com or log in to EDAboard and participate in the microcontroller forum thread.) PIC16F877 UART RX is not working TX and ADC are working – I am trying to […]
For Arduino fans — The Arduino Inventor’s Guide
The 312-page Arduino Inventor’s Guide is part of a book series by the online electronics retail store SparkFun and explains ten projects focused around the Arduino board which helps explain basic programming and electronic concepts. The explanations assume little or no background in electronics and are wrapped around ten simple projects involving LEDs, a few […]
Wireless and MCUs: Bluetooth, Wi-Fi, or Zigbee?
Most of the things in the Internet of Things (IoT) will include processors, sensors, and a wireless communication path to the Internet, and all likely will be limited to a small power budget. Which one should you use? Bluetooth, Wi-Fi, and ZigBee are different wireless communication protocols that are often accessible as modules for easy […]
MCUs & Dev Boards: saving power by the microAmp
A previous article about optimizing power efficiency in microcontrollers concentrated on optimizing code and using low power MCUs from manufacturers. A closer look at power saving techniques in hardware is in order, however, if you need to squeeze every drop out of an MCU that can’t be traded in for a lower-power model. Components: Many […]
What is an embedded bootloader?
Anyone who has turned on a computer might be familiar with the boot-up sequence as computer flashes lines of text on screen before the Windows logo appears. What you are seeing is a bootloader in action, loading essential software to get the minimum running on the processor chip before higher-level software can run. Embedded bootloaders […]
What is an open drain on a FET device and how is it used?
If you are working with an integrated circuit (IC) and the datasheet mentions an open drain or open collector, that’s engineering speak for a current sink on an output pin. For those unfamiliar with the terminology, a “current sink” means that the current is flowing into the pin (or node, etc.), not out of the […]
Top microcontroller threads on EDAboard.com – June
(editor’s note: Intrigued by the problem? Have a similar challenge? Have a question or another solution? Then click the “Read more” link and follow the conversation on EDAboard.com or log in to EDAboard and participate in the microcontroller forum thread.) Stuck in ISR, RCIF is not firing when UART with PIC18f5420 and SIM800 – I am […]
Board Support Package: what is it?
When designing a new system, you might find yourself drawn to a new processor with features that can make a real difference in the final product. Most semiconductor vendors will provide an evaluation board that you can use to evaluate whether or not you want to invest your time and money into that particular processor […]
